baber/WOPTO huggingface dataset:
Patent GB-1424976-A (GB)
Title: Disc brake and a friction pad for such a disc brake
IPC: F16D65/18
Filed: 1974-10-10
Abstract: 1424976 Spot type disc brakes and pads; noise-preventing; cooling SOC ANON DBA 10 May 1974 [5 June 1973] 20790/74 Heading F2E In a disc brake comprising a fixed support and a caliper axially movable relative to the fixed support and straddling a disc, a first brake pad being urged towards the disc by at least one brake actuator mounted in a first arm of the caliper, and a second brake pad being urged by a second arm of the caliper, at least one of the pads being slidably anchored on two columns of the fixed support extending parallel to the disc axis, the actuator includes a piston slidably mounted in a cylinder formed in said first arm, the fixed support comprises a substantially flat plate which includes two side faces parallel to the disc faces, the said columns extending from one of the plate faces, the other plate face supporting at least one extension parallel to the disc axis on which the caliper is slidable by way of its first arm, and an aperture is provided in the plate to permit passage of an axial projection on the piston, the projection being designed to urge the first pad. As shown in Figs. 1 and 2, the first arm 16 of a  sliding caliper incorporates a cylinder and two lobes 18 by which the caliper is guided on a cylindrical pin 20 extending from a plate 10 constituting a fixed support. A piston 50 in the cylinder has an axial projection 52 which extends through an aperture 54 in the plate 10 and is connected to the inner brake pad 28; pad 28 is guided by backing-plate slots 32 and 34 along a removable column 26 and along a smaller column 36 (an extension of pin 20) respectively. The outer brake pad 30, Fig. 4, is secured to the second arm 14 of the caliper by a recess 44, in the lower edge of the pad backing plate, which is engaged by a lug 40 on a caliper bridging-portion 42. (In the absence of disc 12, the end of smaller column 36 is visible through a slot in the lower edge of brake pad 30). Pad 30 is guided by engagement of an upper slot 38 with the column 26. The pads are retained radially by a noise-reducing spring 46, Fig. 5, having ventilation holes 48. The caliper has a rectangular aperture into which the pads extend and through which upper end 24 of plate 10 extends, for guidance of the caliper. Preferably each brake pad has an upper slot, the lower recess 44, and two lower slots so that it may serve as pad 28 or pad 30 and at either side of a vehicle. Plate 10 acts as a heat shield between pad 28 and the actuator.
Patent GB-1358002-A (GB)
Title: Planetary piston internal combustion engines
IPC: F02B55/04
Filed: 1972-05-04
Abstract: 1358002 Rotary-piston engines AUDI NSU AUTO UNION AG and WANKEL GmbH 4 May 1972 [10 May 1971] 20818/72 Heading F1F In a Wankel-type I.C. engine oil for lubricating shaft bearings 5, 6 and a piston bearing 9 and for cooling the piston 10 is supplied from a reservoir 20 by pumps 19, 27, respectively, which may have dissimilar output pressures and delivery rates. A flow-regulating valve 38 is controlled by a heat sensor 41 in the path of oil returning to the reservoir, the flow of oil to the bearings being thus varied in accordance with the operating temperature. Alternatively, the valve 38 is controlled commensurably with the engine speed and/or load.
Patent GB-532322-A (GB)
Title: Improvements in and relating to transportable fire-fighting and like appliances
IPC: A62C27/00
Filed: 1939-07-18
Abstract: 532,322. Fire-extinguishing &c. NORTH, O. D., HALL, W. F., HUGH, P.G., and SCAMMELL LORRIES, Ltd. July 18, 1939. Nos. 20885/39 and 9034/40. [Class 47 (ii)] A transportable fire-fighting or like appliance comprises a pump and power unit supported by an open frame body adapted to be supported by hand at one end and having a central wheel at the other end under the pump and power unit. The unit is supported on brackets 12, 13 depending from side tubes 15, which may have poles passed through them when it is desired to  lift the unit from the frame and carry the same. An internal combustion engine 2 drives a pump in a casing 1 and a fan in a casing 26, the fan cooling the engine by air draught directed by a hood 17. Suction pipes 24 for the pump may be held in position for transport by brackets  secured to the frame. A casing 11 may house a  hose. In a modification, an opposed twin-cylinder  engine is provided, and a hose is permanently connected with the pump by a pipe at the centre of a hose reel.
Patent GB-1074187-A (GB)
Title: Improvements in or relating to channel for a scraper chain conveyor
Inventor: GRISEBACH HANS-THEODOR
IPC: B65G19/10
Filed: 1966-05-11
Abstract: 1,074,187. Endless conveyers. GEWERKSCHAFT EISENHœTTE WESTFALIA. May 11, 1966, No. 20893/66. Heading B8A. Scraper conveyer troughs have sidesection reinforcement members 12, the centre leg 14 of which projects inwardly to a greater extent than the corresponding centre projecting portion of each sidesection member 10. The channel bottom member 11 is accordingly recessed at its corners (15) (Fig. 2, not shown).
Patent GB-444154-A (GB)
Title: Improvements in washing machines
IPC: D06F13/00
Filed: 1935-07-24
Abstract: 444,154. Washing-machines. WEBSTER, M. K., 40, Liverpool Road, Skelmersdale, Lancashire. July 24, 1935, No. 20983. [Class 138 (ii)] In a rotary agitator type of washing - machine in order to permit the ready removal of the agitator, the bearing bush 9 for the agitator shaft 10 is axially divided into two approximately semicylindrical members having interengaging ribs and recesses. The lower end of the bush projects into a ring 20 and the upper end of the bush is formed with a flange, bolts 19 passing through the machine lid 6 and the flange and ring securing the bush in position. The agitator comprises a frame 12 to which are secured sheet metal elements 15 forming an inverted boat-shaped member.
Patent GB-1212229-A (GB)
Title: Improvements in or relating to fluid check or non-return valves
IPC: F16K15/08
Filed: 1968-05-03
Abstract: 1,212,229. Valves. INGERSOLL-RAND CO. 3 May, 1968 [7 June, 1967], 21040/68. Heading F2V. Check valve comprises a series of channelsectioned rectangular strips 4 constrained to move between a ported valve seat 5 mounted on a body 6 and an apertured guard plate 2. The strips are loaded by leaf springs 8. A pair of guide support blocks 7 are provided each with replaceable inserts 14 forming guides for the ends of the strips 4. These guides are located by integral keys 13 which fit slots 12 in the block, and are of plastics material to avoid wear and scoring. The inserts may be separate or madeasaseriallyjoined unit for each block. Instead of using inserts, the guide blocks 7 or the strips 4, or both, may be coated with plastics material. The inserts and coating may be of P.T.F.E.
Patent GB-294479-A (GB)
Title: Improvements in super-charging apparatus for single-acting four-stroke cycle internal combustion engines
IPC: F02B1/00
Filed: 1928-07-23
Abstract: 294,479. Baulino, C. July 23, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Four - stroke - cycle engines. - Air drawn past the regulating valve N is compressed by the front side of the power piston A. and is delivered to a reservoir G, which in a multicylinder engine is common to all the cylinders. The reservoir has a cooling jacket and mav contain a nest of cooling tubes. If it is desired to work on normal suction cycle, the valve R opens the reservoir to the atmosphere.
Patent GB-951255-A (GB)
Title: Process for the manufacture of sodium by electrolysis of fused salt baths
IPC: C25C3/02
Filed: 1960-06-16
Abstract: Pure sodium is produced by electrolysis of a bath of fused salts at a temperature from 500 to 700  DEG C., preferably fixed at 1.05 to 1.15 times the solidification temperature of the mixture of salts, and under a voltage of 5-7 volts, the bath consisting of x gram moles per cent of NaCl, y gram moles per cent of LiCl and z gram moles per cent of at least one salt selected from 0.1 to 2. In examples, the cathode current between 0.7 and 4.0 and the ratio z:y being from 0.1-2. In examples, the cathode current density is 2 amp./cm.2 yielding sodium of at least 96% purity. Alloys of sodium and lithium (such as 54% Na-46% Li and 56% Na-44% Li) may also be obtained by regulating the amounts of Na and Li ions.  Specification 951,253 is referred to.
Patent GB-706576-A (GB)
Title: Improvements in or relating to linkages for use in indicating or measuring instruments, such as pressure gauges and the like
Inventor: BARRATT AUBREY
IPC: G01L19/08
Filed: 1951-09-11
Abstract: 706,576. Indicating-apparatus; pressure gauges. SMITH & SONS (ENGLAND), Ltd., S. Sept. 11, 1952 [Sept. 11, 1951], No. 21361/51. Classes 106 (2) and 106 (4) An adjustable lever arm for use in linkages in mechanisms of indicating-apparatus comprises a member 7 formed with a flat portion 8 parallel with a rotatable shaft 5 to which the member 7 is attached, a threaded rod 11 carried by the member 7 with its axis perpendicular to the shaft 5 and parallel to the flat portion 8 and provided with an annular groove centred on its axis cooperating with the flat portion 8 to engage with a suitably shaped further part of the linkage, whereby by the adjustment of the threaded rod effective lever arm is altered. As shown, a Bourdon tube gauge mechanism comprises a flattened resilient tube 1 which carries a mechanism plate 3 provided with a bearing 4 for a pointer shaft 5. Attached to the shaft 5 is a member 7 of strip material formed with three upstanding lugs 8, 9, 10. A rod 11 is threaded into the lug 10 and is formed at its other end with an enlarged head 12 with flats adapted to engage the lugs 8, 9 and an annular groove which with the flat 8 forms a bearing for one end of a link 15 whose other end is pivoted to the closed end of the tube 1. Backlash is prevented by a hairspring 16 and the lugs 8, 9 are sufficiently stiff to prevent unwanted rotation of the rod 11 due to vibration while being sufficiently resilient to allow the rod 11 to be rotated by a screwdriver engaging a slot in its head for the purpose of adjusting the velocityratio of the transmission.
Patent GB-1510288-A (GB)
Title: Leak-proof sealing arrangements for electric storage batteries
IPC: H01M50/529
Filed: 1976-05-24
Abstract: 1510288 Coating compositions for metallic parts VARTA BATTERIE AG 24 May 1976 [25 June 1975] 21436/76 Heading C4A [Also in Division H1] A solution of 2-20% by wt. colophony dissolved in EtOH is used to coat metallic parts before being sealed into synthetic resin members (e.g. storage battery containers). The solution may also contain an elastic or rubber-like substance, e.g. 1-6 wt. per cent of PVA or copolymers of ethylene and vinyl acetate.
Patent GB-441626-A (GB)
Title: Improvements in vacuum tube amplifiers
IPC: H03F1/36
Filed: 1934-07-23
Abstract: 441,626. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd., 63, Aldwych, London.-(Assignees of Ware, L. A. ; 61, North Arlington Street, East Orange, New Jersey, U.S.A.) July 23, 1934, No. 21484. Convention date, Dec. 21, 1933. [Class 40 (v)] A thermionic amplifier of the kind employing negative feed back between output and input for distortion correction, and in which the amplifier gain-frequency characteristic is variable with frequency to correct for line attenuation, is arranged so that the gain-frequency characteristic of the forwardly transmitting portion is similar to that of the amplifier including the feed-back circuit. The forwardly transmitting portion of the amplifier comprises three cascade-connected stages 21, 22, 23, the intervalve couplings 3, 4, 7, 8 being so designed that the coil resonance occurs at the top frequency of the working range. In order to provide equal reduction of distortion over the range, the negative feed-back path taken from point A of the output resistance bridge Ro, 17, 1, 2 to the point B of the input resistance bridge R1, 18, 19, 20 includes a network 13, 14, 15, 16 tuned to the frequency of maximum line attenuation; the feed-back network is thus such as to give the amplifier with feed-back the same gain-frequency characteristic as stages S1, S2, S3 alone. Surging in the amplifier is also prevented by this means since the phase-shift frequency characteristic passes through 180‹ at the upper frequency of the working range while the phase-shift of the feed-back network alone passes through zero in the opposite sense at or near this frequency. The desired phaseshift conditions are assisted by making the values of the grid leaks 5, 9, as low as possible and by adjustment of resistances 3, 7. The amplifier is suitable for a frequency range of 50 to 500 kc. and is applicable to television and multiplex carrier telephony.
Patent GB-806322-A (GB)
Title: System for controlling the supply to a plurality of pressurized enclosures, especially in aircraft
IPC: F24F11/02
Filed: 1956-07-11
Abstract: 806,322. Ventilation. BENDIX AVIATION CORPORATION. July 11, 1956 [July 18, 1955], No. 21486/56. Class 137 [Also in Group XIII] An air conditioning system for a plurality of enclosures such as in an aircraft, the enclosures being divided into two or more groups, has the air pressure in each group controlled by a regulating device 75, 110, Fig. 1, interposed between the supply line 32 for the group and the supply line 70 for the next group, or between the supply line 70 for the last group and the exhaust 114, the regulating devices 75, 110 being so adjusted that the pressures in lines 32, 70 are at a constant level above the prevailing atmospheric pressure and that in line 32 is greater than that in line 70. Air passing in at 5 to the compressor stages 7 of a turbo jet aircraft engine 4 is supplied at 10 to the combustion chamber for the engine and is also bled off at 12 to a heat exchanger 14 and air expansion turbine 27 and flows therefrom to the supply line 32. The heat exchanger 14 is supplied through line 16 with relatively cool air which after passing through the passages 18 is drawn through conduit 20 leading to an air pump 22 which is driven by the turbine 27. The supply line 32 provides air for cabin 50 and accessory compartments 52, 54, 56 through valves 42, 44, 46 and 48 respectively. The supply line 70 is connected through valves 94 and 96 respectively to accessory compartments 98 and 100. The regulating device 75 connecting lines 32, 70 comprises a valve element 76 operated through rod 78 connected to a differential bellows 80 biased by a spring 82, the bellows 80 being acted upon by the pressure in line 32 and that of the atmosphere. Similarly the bellows 118, in regulating device 110 which controls valve element 112, is acted upon by the pressure in line 70 and that of the atmosphere. The exhaust 114 leads to the atmosphere. In a modification hot air from conduit 12 is led through a reducing valve and mixed in a mixing valve, controlled by a temperature sensitive element in the cabin, with the air from line 32 before massing to the cabin. Specifications 593,585 [Group XXIX] and 615,676 [Group XXXV] are referred to.
Patent GB-803064-A (GB)
Title: Manipulator for supporting work for welding or other operations
Inventor: YARWOOD HARRY
IPC: B23Q1/48
Filed: 1955-07-25
Abstract: 803,064. Work-holders. FUSARC, Ltd. July 19, 1956 [July 25, 1955], No. 21487/55. Class 83 (3). A work-holder for supporting work during welding &c. operations, comprises a motor 24 for raising, and simultaneously tilting, the worktable 10. The table is mounted on trunnions bearing in an arm 15 raised on a column 16 by a lead-screw 25 driven by the electric motor 24, through gearing. A train of gears 20-22 in the arm 15 meshes with racks 23 on the column 16 and with toothed-sectors 17, 18 attached to the table, and operating to tilt the table upon the arm being raised, the tilting-movement reducing the vertical travel of the centre-of-gravity of the work and the table 10 combined, compared with of the arm. Rollers 26 on the arm run on track on the column 16, and the table may be turned about an axis of symmetry, perpendicular to its plane, by hand or by a motor 13 driving through a belt or chain in a casing 14, and gearing in a housing 12.
Patent GB-382649-A (GB)
Title: Improvements in and relating to folding machines
IPC: B65H45/30
Filed: 1931-07-28
Abstract: 382,649. Uniting and folding paper sheets. DIXON, H. E., 26, Holborn Viaduct, London. July 28, 1931, No. 21522. [Classes 100 (i) and 100 (ii).] Paper sheets or signatures are united, either'by adhesive applied to overlapping edges or by a gummed strip, and folded along the connecting line, in a single machine. Two sheets a, b, Fig. 2, are registered with the required overlap against adjustable side-gauges d, e, on a table c, Fig. 1, and pusher-members f feed them between endless bands g where adhesive or a gummed strip is applied and the sheets pressed together. Endless bands convey the united sheets to tapes q moving over a folding table or to a conveyer moving at right-angles to the bands k which carry the sheets to a buckling- folder. In the former case, a reciprocating device o registers the sheets laterally and a knife m folds the sheets which are received in a tray p<1>. The registering device o, folding mechanism, and delivery rollers p are thrown into operation by the action of the sheets on a feeler mechanism constructed as described in Specification 339,993, [Class 100 (i), Feeding and delivering webs &c.], or by mechanism shown in Figs. 5 and 7, wherein a pivoted feeler r has a catch t normally holding a lever s in a position against spring action so that a finger 4 on a link w connected therewith engages and holds inoperative a spring-pressed pin 5 which, when released, couples together the two halves y, z of a clutch on a continuouslyrotating shaft x. When a sheet engages the detector r, the release of the pin 5 is effected and causes a cam u fixed to the clutch part z to be given one revolution so as to operate, through a link 7, the folding &c. mechanisms.
Patent GB-532688-A (GB)
Title: Improvements in or relating to electric cables
IPC: H02G15/00
Filed: 1939-07-25
Abstract: 532,688. Cable joints and terminations. STANDARD TELEPHONES & CABLES, Ltd., SCOTT, T. R., and WEBB, J. K. July 25, 1939, No. 21608. Addition to 504,720. [Classes 36 and 38 (i)] A barrier joint or termination for an impregnated power cable is formed by lapping the conductor with paper or other fibrous tapes impregnated with polymerized insulating material, the tapes being basted with a non- polymerizable material which is soluble in the polymerized material and thus causes the tapes to adhere to one another. The solvent must be one which is completely soluble in all proportions in the polymerized material, and vice versa, and must be limited to such an amount that the polymerized material is not softened to a degree permitting plastic flow under normal operating temperature and pressure conditions of the cable. When employing tapes impregnated with a mixture of polystyrene and plasticizers the combined amount of plasticizers and the solvent used for basting, which may be toluene or methyl chloride, should not exceed 25 per cent. of the impregnant. Toluene may also be used as the solvent when polyisobutylene is employed as the impregnant. The lappings of tape may overlap the sheath of the cable, as described in Specification 508,036. Bushings, condenser or otherwise, and stress grading devices may be formed in a similar manner.
Patent GB-383935-A (GB)
Title: Improvements relating to footwear
IPC: A43B3/14
Filed: 1932-08-02
Abstract: 383,935. Boots &c. MONDSCHEIN, L., SPEIER, P., (trading as MONDSCHEIN & SPEIER), 3, Pfeiffergasse, Vienna, and GROSZ, K., 11, Rombach-Ucca, Budapest. Aug. 2, 1932, No. 21610. Convention date, Feb. 5. [Class 17 (ii).] The out-turned edge 4 of a shoe upper 3 is stitched, with the aid of a leather strip 6, to the upwardly bent margin 2 of the outer sole 1, the outer or exposed edge of the strip 6, or the margin 2 of the sole, or both, being curled to conceal the stitching 8. The edge of the upper lining 5 is sewn to the inner edge of the strip 6.
Patent GB-1103593-A (GB)
Title: Improvements relating to printing plates
Inventor: HAWKINS ROY DODSON
IPC: B41C1/18
Filed: 1964-05-26
Abstract: 1,103,593. Printing surfaces. DELLAGANA & DENBY Ltd. 26 May, 1965 [26 May, 1964], No. 21616/64. Heading B6C. A printing plate, e.g. a backed electrotype plate 10, is curved for fitting to a cylinder by placing a second plate 11 of a relatively hard metal such as steel against the printing face of the plate 10, holding the plates together and subjecting them to a bending operation, the second plate serving to restrict or eliminate the stretch of the printing face of the plate 10. In one embodiment, the plate 11 has inturned flanges 12 engaging with clearances a, b and grooves 14 in the edges of the plate 10, the clearance a determining the amount the plate 10 stretches during bending. The plate 11 may be of springy material and normally curved so that it has to be temporarily flattened for attachment to the plate 10. In this case, the flanges 12 are replaced by blocks 30, Fig. 3 (not shown), attached to the plate 11 and suitably shaped to engage the grooves 14. The printing plate may be provided with " makeready," by inserting suitable " make-ready " material between the plates 10, 11 before bending and removing such material after bending. The metal used for backing the electrotype shell may be made up of tin, antimony and lead in proportions varied according to the degree of curvature required.
Patent GB-1164425-A (GB)
Title: Irradiated Tobacco Process and Product
IPC: A24B15/22
Filed: 1968-05-07
Abstract: 1,164,425. Treating tobacco. STEBER CORP. 7 May, 1968 [24 May, 1967], No. 21628/68. Heading A2C. Tobacco is treated to reduce the carbon monoxide content of the smoke produced therefrom, by impregnating the tobacco with 0.5-8.0 per cent by weight of the dry tobacco of a metal oxide selected from iron, calcium and copper oxides and hydrates and mixtures thereof, at least one third of said metal oxide being ferric oxide, the metal oxide being disposed of in the form of an aqueous dispersion with a carrier of reducing sugars or carbohydrates readily hydrolysed to reducing sugars, and selectively irradiating the impregnated tobacco with an effective amount of visible light in the range of 4000-5000A and 6000-7000A and of UV light below 3400A to form a photochemical non-staining complex of the tobacco and the metal compound and drying, cleaning and separating said tobacco. Preferably the tobacco is dried before impregnation. In the examples ferric oxide is mixed with a sucrose solution and boiled, or mixed with a glucose solution without heating, to form the impregnating dispersion. Other sugars exemplified are lactose, maltose and D-fructose.
Patent GB-597613-A (GB)
Title: Improvements in or relating to pneumatic stowage machines
IPC: E21F15/10
Filed: 1945-08-23
Abstract: 597,613. Pneumatic conveyers. SPRAGG, H., and HALL, W. E. Aug. 23, 1945, No. 21641. [Class 78(i)] A pneumatic conveyer comprises a motor 10 which drives through a reduction gear 12 a pocketed rotor 15, the shaft 14 of which is mounted in bearings 19 in end plates 17, 18 of a casing 16. In the casing 16 there is formed an aperture 20 which registers with a hopper 21 through which material is fed to the rotor pockets, whilst at the bottom is an aperture 22 registering, with openings 23, 24 in a plate 25, the openings being aligned with pipes 31, 32. The pipe 31 has formed in it a Venturi orifice through which air at a high velocity passes from a supply pipe 30. The air tangentially entering the pocket 36 of the rotor picks up the material and carries it along to a delivery pipe 40.